4x+12(20-x)=120

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Solution for 4x+12(20-x)=120 equation: 



4x+12(20-x)=120

We move all terms to the left:

4x+12(20-x)-(120)=0

We add all the numbers together, and all the variables

4x+12(-1x+20)-120=0

We multiply parentheses

4x-12x+240-120=0

We add all the numbers together, and all the variables

-8x+120=0

We move all terms containing x to the left, all other terms to the right

-8x=-120

x=-120/-8

x=+15

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